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Genetic hypervariability of a Northeastern Atlantic venomous rockfish

BACKGROUND: Understanding the interplay between climate and current and historical factors shaping genetic diversity is pivotal to infer changes in marine species range and communities’ composition. A phylogeographical break between the Atlantic and the Mediterranean has been documented for several...

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Autores principales: Francisco, Sara M., Castilho, Rita, Lima, Cristina S., Almada, Frederico, Rodrigues, Francisca, Šanda, Radek, Vukić, Jasna, Pappalardo, Anna Maria, Ferrito, Venera, Robalo, Joana I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8280884/
https://www.ncbi.nlm.nih.gov/pubmed/34306828
http://dx.doi.org/10.7717/peerj.11730
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author Francisco, Sara M.
Castilho, Rita
Lima, Cristina S.
Almada, Frederico
Rodrigues, Francisca
Šanda, Radek
Vukić, Jasna
Pappalardo, Anna Maria
Ferrito, Venera
Robalo, Joana I.
author_facet Francisco, Sara M.
Castilho, Rita
Lima, Cristina S.
Almada, Frederico
Rodrigues, Francisca
Šanda, Radek
Vukić, Jasna
Pappalardo, Anna Maria
Ferrito, Venera
Robalo, Joana I.
author_sort Francisco, Sara M.
collection PubMed
description BACKGROUND: Understanding the interplay between climate and current and historical factors shaping genetic diversity is pivotal to infer changes in marine species range and communities’ composition. A phylogeographical break between the Atlantic and the Mediterranean has been documented for several marine organisms, translating into limited dispersal between the two basins. METHODS: In this study, we screened the intraspecific diversity of 150 individuals of the Madeira rockfish (Scorpaena maderensis) across its distributional range (seven sampling locations in the Atlantic and Mediterranean basins) using the mitochondrial control region and the nuclear S7 first intron. RESULTS: The present work is the most comprehensive study done for this species, yielding no genetic structure across sampled locations and no detectable Atlantic-Mediterranean break in connectivity. Our results reveal deep and hyper-diverse bush-like genealogies with large numbers of singletons and very few shared haplotypes. The genetic hyper-diversity found for the Madeira rockfish is relatively uncommon in rocky coastal species, whose dispersal capability is limited by local oceanographic patterns. The effect of climate warming on the distribution of the species is discussed.
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spelling pubmed-82808842021-07-23 Genetic hypervariability of a Northeastern Atlantic venomous rockfish Francisco, Sara M. Castilho, Rita Lima, Cristina S. Almada, Frederico Rodrigues, Francisca Šanda, Radek Vukić, Jasna Pappalardo, Anna Maria Ferrito, Venera Robalo, Joana I. PeerJ Aquaculture, Fisheries and Fish Science BACKGROUND: Understanding the interplay between climate and current and historical factors shaping genetic diversity is pivotal to infer changes in marine species range and communities’ composition. A phylogeographical break between the Atlantic and the Mediterranean has been documented for several marine organisms, translating into limited dispersal between the two basins. METHODS: In this study, we screened the intraspecific diversity of 150 individuals of the Madeira rockfish (Scorpaena maderensis) across its distributional range (seven sampling locations in the Atlantic and Mediterranean basins) using the mitochondrial control region and the nuclear S7 first intron. RESULTS: The present work is the most comprehensive study done for this species, yielding no genetic structure across sampled locations and no detectable Atlantic-Mediterranean break in connectivity. Our results reveal deep and hyper-diverse bush-like genealogies with large numbers of singletons and very few shared haplotypes. The genetic hyper-diversity found for the Madeira rockfish is relatively uncommon in rocky coastal species, whose dispersal capability is limited by local oceanographic patterns. The effect of climate warming on the distribution of the species is discussed. PeerJ Inc. 2021-07-12 /pmc/articles/PMC8280884/ /pubmed/34306828 http://dx.doi.org/10.7717/peerj.11730 Text en © 2021 Francisco et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Aquaculture, Fisheries and Fish Science
Francisco, Sara M.
Castilho, Rita
Lima, Cristina S.
Almada, Frederico
Rodrigues, Francisca
Šanda, Radek
Vukić, Jasna
Pappalardo, Anna Maria
Ferrito, Venera
Robalo, Joana I.
Genetic hypervariability of a Northeastern Atlantic venomous rockfish
title Genetic hypervariability of a Northeastern Atlantic venomous rockfish
title_full Genetic hypervariability of a Northeastern Atlantic venomous rockfish
title_fullStr Genetic hypervariability of a Northeastern Atlantic venomous rockfish
title_full_unstemmed Genetic hypervariability of a Northeastern Atlantic venomous rockfish
title_short Genetic hypervariability of a Northeastern Atlantic venomous rockfish
title_sort genetic hypervariability of a northeastern atlantic venomous rockfish
topic Aquaculture, Fisheries and Fish Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8280884/
https://www.ncbi.nlm.nih.gov/pubmed/34306828
http://dx.doi.org/10.7717/peerj.11730
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